Question

After crossing purebred red (dominant) and purebred white (recessive) flowers, pink flowers appeared. Using symbols, show the cross between pink and white flowers.

Rr x rr
RR x rr
Rr x RR

Answer 1

the correct answer is:

A) Rr x rr

Answer 2

Since after crossing a red and a white flower produced pink flowers, the red color trait shows an incomplete dominance and has a genotype of Rr.
Using the Punnett to determine the cross between pink and white flowers:
| R | r |
r | Rr | rr |
r | Rr | rr |

The results indicate that the cross between pink and white flowers will produce a ratio of 1:1

Rr x rr